Set around Halloween, 2018 in Shibuya, Tokyo. A dead body that was beaten to death is found. Detective Imanishi (Noriyuki Higashiyama) begins to investigate the case. The only clue in the case is that the victim said the Tohoku dialect word “Kameda.” While chasing the case, Detective Imanishi faces a new mystery.
Meanwhile, Eiryo Waga (Kento Nakajima) is a genius composer. After he committed a murder, he focuses on composing the concerto “Shukumei.”